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Electrochemical techniques

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Abstract

The electrical properties of a solid metal conductor, such as copper, can be defined in a simple manner by its conductivity, which is a measure of how easily electricity passes through it. The situation becomes more complex when the geometry of the conductor is changed, for example into a coil, and alternating current is used. However, under direct-current conditions the current passing through a conductor is defined by Ohm’s law:
$$ V=RI $$
where V(in volts) is the voltage across the conductor of resistance R (ohms) which results in a current of I (amperes). This simple treatment cannot be extended to the conduction of electricity, even as direct current, through solutions due to the presence of a number of additional effects. First of all, the nature of the solutions themselves, with respect to the presence of suitable conducting ions, and secondly the interaction between the electrodes placed in the solution and the solution components, must be considered.

Keywords

Electrode Potential Salt Bridge Electrode Reaction Instrumental Analysis Electrochemical Technique 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Bassett, J., Denney, R.C., Jeffery, G.H. and Mendham, J. (1983) Vogel’s Textbook of Quantitative Inorganic Analysis, 4th edn, Longman, London, ch. X VI.Google Scholar
  2. Borkowski, J.D. and Johnson, M.J. (1967) Biotech. and Bioeng. 9, 635.CrossRefGoogle Scholar
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Further reading

  1. Frieser, H. (1978) Ion-Selective Electrodes in Analytical Chemistry, vol. I, Plenum, New YorkGoogle Scholar
  2. Heyrovsky, J. and Kuta, J. (1965) Principles of Polarography, Academic Press, New York.Google Scholar
  3. Rossotti, H. (1969) Chemical Applications of Potentiometry, Van Nostrand Reinhold, New York.Google Scholar
  4. Weissberger, A. and Rossiter, B.W. (1971) Physical Methods of Chemistry Parts Ha and Ilb: Electrochemical Methods, Wiley-Interscience, New York.Google Scholar
  5. Westcott, C.C. (1978) pH Measurements, Academic Press, New York.Google Scholar

Copyright information

© Blackie & Son Ltd 1987

Authors and Affiliations

  1. 1.University of ReadingUK

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